tailieunhanh - Development of Fischer-Tropsch Catalysts for Gasified Biomass

In order to secure the energy supply to an increasing population and at the same time limit the damage to Earth, . avoiding a fatal climate change as a result of anthropogenic emissions of greenhouse gases (primarily CO2), immediate action is necessary. This includes reducing the energy consumption, increasing the energy conversion efficiency, and using renewable energies. The transport sector is the one most dependent on fossil energy and it stands for a significant part of the energy consumption in the world. For instance, in EU-25 transportation stands for 30 % of the total final energy consumption and relies to. | 0 0 f T H I VETENSKAP Xfl OCH KONST Ọ KTH Chemical Science and Engineering Development of Fischer-Tropsch Catalysts for Gasified Biomass SARA LỒGDBERG Licentiate Thesis in Chemical Engineering Stockholm Sweden 2007 TRITA-CHE-Report 2007 36 ISSN 1654-1081 ISBN 978-91-7178-698-2 KTH School of Chemical Science and Engineering SE-100 44 Stockholm SWEDEN Sara Logdberg May 2007 Abstract In order to secure the energy supply to an increasing population and at the same time limit the damage to Earth . avoiding a fatal climate change as a result of anthropogenic emissions of greenhouse gases primarily CO2 immediate action is necessary. This includes reducing the energy consumption increasing the energy conversion efficiency and using renewable energies. The transport sector is the one most dependent on fossil energy and it stands for a significant part of the energy consumption in the world. For instance in EU-25 transportation stands for 30 of the total final energy consumption and relies to 98 on oil. Being the only renewable energy possible to convert into liquid fuels biomass as a means for reducing the CO2 emissions from the transport sector will play an important role in the near future. The conversion of biomass into transportation fuels is preferentially done via gasification followed by the fuel synthesis. The whole production chain from biomass to final fuel is very dependent on R D in order to become competitive with the fossil fuels. Fischer-Tropsch FT diesel made from biomass is a viable option for reducing the CO2 emissions from transportation since it may be blended with conventional diesel in any concentration. Furthermore since its composition is almost the same as of petroleum-based diesel although cleaner the same distribution system and engines may be used which facilitates its introduction on the market. This thesis presents the results of the laboratory work performed in 2003 - 2007 at the Department of Chemical Technology KTH and at the Department .